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Use the `mantle-companion-upload` MCP tool to upload a local image file
How this command is triggered — by the user, by Claude, or both
Slash command
/mantle-companion-upload:mantle-uploadThe summary Claude sees in its command listing — used to decide when to auto-load this command
# Upload a file to Mantle Use the `mantle-companion-upload` MCP tool to upload a local image file into the connected Mantle site. Ask for only the missing values: - local file path - upload purpose, such as `post-cover`, `product-cover`, or `product-image` - alt text, when the asset is an image Do not ask the user to paste image bytes or base64. Call the bundled MCP tool with the local file path and metadata. The tool will request a Mantle upload session, PUT bytes to signed URLs, then commit and return the `asset.id` plus preview URLs. If the tool says the Worker origin or Staff MCP...
Use the mantle-companion-upload MCP tool to upload a local image file
into the connected Mantle site.
Ask for only the missing values:
post-cover, product-cover, or
product-imageDo not ask the user to paste image bytes or base64. Call the bundled MCP
tool with the local file path and metadata. The tool will request a
Mantle upload session, PUT bytes to signed URLs, then commit and return
the asset.id plus preview URLs.
If the tool says the Worker origin or Staff MCP bearer is missing, ask
the operator to provide MANTLE_WORKER_ORIGIN / MANTLE_STAFF_BEARER
or pass workerOrigin / staffBearer to the tool. Do not fall back to
base64-in-MCP.
npx claudepluginhub aotter/mantle-starters --plugin mantle-companion-upload